Granted Patent
Utility
US 4,864,893 · App. 07/078,631
Planetary gear having its orbital gears out of phase
Inventor:
Kouhei Hori
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Jul 28, 1987
Inventor
Kouhei Hori
Assignee (at issue)
Kabushiki Kaisha Toshiba
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.